Update metric example to use resource detectors (#724)

* update metric example to use resource detectors Co-authored-by: Aaron Abbott <aaronabbott@google.com>
GoogleCloudPlatform · Sep 21, 2023 · 412fafa · 412fafa
1 parent fe9ad49
commit 412fafa
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Showing 3 changed files with 29 additions and 2 deletions.
diff --git a/example/metric/sdk/example.go b/example/metric/sdk/example.go
@@ -24,9 +24,12 @@ import (
 
 	mexporter "github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric"
 
+	"go.opentelemetry.io/contrib/detectors/gcp"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/metric"
 	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
+	"go.opentelemetry.io/otel/sdk/resource"
+	semconv "go.opentelemetry.io/otel/semconv/v1.18.0"
 )
 
 type observedFloat struct {
@@ -53,6 +56,7 @@ func newObservedFloat(v float64) *observedFloat {
 }
 
 func main() {
+	ctx := context.Background()
 	// Initialization. In order to pass the credentials to the exporter,
 	// prepare credential file following the instruction described in this doc.
 	// https://pkg.go.dev/golang.org/x/oauth2/google?tab=doc#FindDefaultCredentials
@@ -61,11 +65,28 @@ func main() {
 		log.Fatalf("Failed to create exporter: %v", err)
 	}
 
+	res, err := resource.New(
+		ctx,
+		// Use the GCP resource detector to detect information about the GCP platform
+		resource.WithDetectors(gcp.NewDetector()),
+		// Keep the default detectors
+		resource.WithTelemetrySDK(),
+		// Add attributes from environment variables
+		resource.WithFromEnv(),
+		// Add your own custom attributes to identify your application
+		resource.WithAttributes(
+			semconv.ServiceNameKey.String("example-application"),
+		),
+	)
+	if err != nil {
+		log.Fatalf("resource.New: %v", err)
+	}
+
 	// initialize a MeterProvider with that periodically exports to the GCP exporter.
 	provider := sdkmetric.NewMeterProvider(
 		sdkmetric.WithReader(sdkmetric.NewPeriodicReader(exporter)),
+		sdkmetric.WithResource(res),
 	)
-	ctx := context.Background()
 	defer func() {
 		if err = provider.Shutdown(ctx); err != nil {
 			log.Fatalf("failed to shutdown meter provider: %v", err)

diff --git a/example/metric/sdk/go.mod b/example/metric/sdk/go.mod
@@ -4,15 +4,18 @@ go 1.20
 
 require (
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.43.1
+	go.opentelemetry.io/contrib/detectors/gcp v1.19.0
 	go.opentelemetry.io/otel v1.18.0
 	go.opentelemetry.io/otel/metric v1.18.0
+	go.opentelemetry.io/otel/sdk v1.18.0
 	go.opentelemetry.io/otel/sdk/metric v0.41.0
 )
 
 require (
 	cloud.google.com/go/compute v1.23.0 // indirect
 	cloud.google.com/go/compute/metadata v0.2.3 // indirect
 	cloud.google.com/go/monitoring v1.15.1 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.19.1 // indirect
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.43.1 // indirect
 	github.com/go-logr/logr v1.2.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
@@ -23,7 +26,6 @@ require (
 	github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
 	github.com/googleapis/gax-go/v2 v2.11.0 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.18.0 // indirect
 	go.opentelemetry.io/otel/trace v1.18.0 // indirect
 	golang.org/x/crypto v0.9.0 // indirect
 	golang.org/x/net v0.10.0 // indirect
@@ -45,3 +47,5 @@ replace github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metr
 replace github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/cloudmock => ../../../internal/cloudmock
 
 replace github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping => ../../../internal/resourcemapping
+
+replace github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp => ../../../detectors/gcp
diff --git a/example/metric/sdk/go.sum b/example/metric/sdk/go.sum
@@ -90,6 +90,8 @@ github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcU
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
+go.opentelemetry.io/contrib/detectors/gcp v1.19.0 h1:jQuVHQiHTnJa8JmZLe8ivKHZUh6x7pqC0DSGDG376II=
+go.opentelemetry.io/contrib/detectors/gcp v1.19.0/go.mod h1:0OKp3ML259QXdgA40Ij04gxOHosnWLHAIh/zAjG5mu4=
 go.opentelemetry.io/otel v1.18.0 h1:TgVozPGZ01nHyDZxK5WGPFB9QexeTMXEH7+tIClWfzs=
 go.opentelemetry.io/otel v1.18.0/go.mod h1:9lWqYO0Db579XzVuCKFNPDl4s73Voa+zEck3wHaAYQI=
 go.opentelemetry.io/otel/metric v1.18.0 h1:JwVzw94UYmbx3ej++CwLUQZxEODDj/pOuTCvzhtRrSQ=